For each House and Senate there are two files -- one has the legislator coordinates
with the bootstrapped standard errors and the other contains the 1000 bootstrapped
trials used to compute the standard errors. All the files are text files.

The file with the bootstrapped standard errors for the 105th Senate
looks like this:

1 1059990999 0USA 10000CLINTON -0.8407 0.5414 -0.7995 0.5040 0.0928 0.1560 0.3781
2 1054970041 0ALABAMA 20001SESSIONS 0.8796 -0.3991 0.9206 -0.3642 0.0524 0.0829 0.7469
3 1059465941 0ALABAMA 20001SHELBY 0.6532 -0.0546 0.7302 -0.0772 0.0892 0.1210 0.0299
4 1051490781 0ALASKA 20001MURKOWSKI 0.5494 0.3198 0.6009 0.3218 0.0696 0.1322 -0.0433
5 1051210981 0ALASKA 20001STEVENS 0.3120 0.6300 0.3827 0.6287 0.0832 0.1257 0.0180
etc etc etc
The first column is an integer counter
The column in red is the Congress number
The column in blue is the ICPSR ID Number
The column in Magenta is the ICPSR State Code
The column of zeroes will show the two digit Congressional District Number for House Roll Call Matrices
The column in Coral is the first seven letters of the State Name
The column in Midnightblue is the party code -- see the Party Codes Page for a complete listing
The column in Firebrick are the ICPSR Occupancy and Election Codes
Name of Senator/Representative
The columns in Turquoise are the W-NOMINATE Coordinates.
The columns in Purple are the Mean Coordinate Values For the 1000 Trials
The columns in Green are the Parametric Bootstrapped Standard Errors
The last column in Deeppink is the Pearson Correlation Between the First and
Second Dimension Coordinate estimates across the 1000 Bootstrap Trials
This can be used to obtain the corresponding covariance term
etc etc etc
97 1051492256 0WEST VI 10001ROCKEFELLER -0.7299 0.6440 -0.7095 0.5983 0.0544 0.1049 -0.0280
98 1054930925 0WISCONS 10001FEINGOLD -0.7723 -0.6353 -0.7796 -0.6066 0.0465 0.0685 -0.7627
99 1051570325 0WISCONS 10001KOHL -0.6280 -0.3566 -0.6327 -0.4450 0.0492 0.1445 -0.0130
100 1054970668 0WYOMING 20001ENZI 0.7526 -0.1695 0.8195 -0.2170 0.0805 0.1246 0.0087
101 1051563368 0WYOMING 20001THOMAS 0.6881 -0.0141 0.7503 -0.0363 0.0758 0.1184 0.0068

The file containing the 1000 bootstrapped sets of coordinates for the
105th Senate looks like this:

The format of this file is exactly the same as that for NOM31.DAT and it is
discussed in detail on the W-NOMINATE Page. This file
has 1001 sets of coordinates. The first set is identical to
the ones contained in the file with the Standard Errors and the following 1000 sets
are the 1000 parametric bootstrap trials.

We are computing these files for every House and Senate in American history and as
they are computed we will update this page weekly until they are completed. We will
also post corresponding files for QN.

We also plan to make programs available that will compute the standard errors for
various other statistics of interest such as the median legislator and Filibuster
and Veto Pivots. We will post these programs shortly.